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Indo Internacional SA
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Indo Internacional SA
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Priority to ES1981258121UpriorityCriticalpatent/ES258121Y/es
Publication of ES258121UpublicationCriticalpatent/ES258121U/es
Application grantedgrantedCritical
Publication of ES258121YpublicationCriticalpatent/ES258121Y/es
Lente oftálmica, caracterizada porque está constituida por un vidrio óptico de composición modificada para la absorción de los rayos ultravioleta próximos al visible (entre 240 y 380 nm), y por una pluralidad de láminas delgadas de materiales transparentes depositados por alto vacío y aplicadas en una o ambas caras del vidrio, que determinan propiedades de alta transmitancia o facultad de paso de la luz por eliminación de la luz reflejada.
Articles en verres birefringents et dichroiques colores obtenus par alteration optique de verres a l'argent et aux halogenures d'argent colores additivement